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package com.oracle.truffle.llvm.test.alpha;

import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Collection;
import java.util.HashSet;
import java.util.function.Predicate;

import org.junit.AfterClass;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;

import com.oracle.truffle.llvm.runtime.options.LLVMOptions;

@RunWith(Parameterized.class)
public final class GCCSuite extends BaseSuiteHarness {

    private static final Path GCC_SUITE_DIR = new File(LLVMOptions.ENGINE.projectRoot() + "/../cache/tests/gcc").toPath();
    private static final Path GCC_SOURCE_DIR = new File(LLVMOptions.ENGINE.projectRoot() + "/../tests/gcc/gcc-5.2.0").toPath();
    private static final Path GCC_CONFIG_DIR = new File(LLVMOptions.ENGINE.projectRoot() + "/../tests/gcc/configs").toPath();

    @Parameter(value = 0) public Path path;
    @Parameter(value = 1) public String testName;

    @Parameters(name = "{1}")
    public static Collection<Object[]> data() {
        return collectTestCases(GCC_CONFIG_DIR, GCC_SUITE_DIR, GCC_SOURCE_DIR);
    }

    @Override
    protected Path getTestDirectory() {
        return path;
    }

    @Override
    protected Predicate<String> filterFileName() {
        return s -> !s.endsWith("clangcpp_O0.bc");
    }

    @Override
    protected Path getSuiteDirectory() {
        return GCC_SUITE_DIR;
    }

    @AfterClass
    public static void printStatistics() {
        HashSet<Path> ignoredFolders = new HashSet<>();
        ignoredFolders.add(Paths.get("gcc-5.2.0/gcc/testsuite/gcc.c-torture/compile"));
        ignoredFolders.add(Paths.get("gcc-5.2.0/gcc/testsuite/gfortran.fortran-torture/compile"));
        ignoredFolders.add(Paths.get("gcc-5.2.0/gcc/testsuite/objc/compile"));
        ignoredFolders.add(Paths.get("gcc-5.2.0/gcc/testsuite/gcc.dg/noncompile"));

        printStatistics("GCC", GCC_SOURCE_DIR, GCC_CONFIG_DIR, f -> !f.toString().contains("/compile/") && !f.toString().contains("/noncompile/"));

        // gcc torture execute only
        printStatistics("gcc.c-torture/execute", Paths.get(GCC_SOURCE_DIR.toAbsolutePath().toString() + "/gcc/testsuite/gcc.c-torture/execute"),
                        Paths.get(GCC_CONFIG_DIR.toAbsolutePath().toString() + "/gcc.c-torture/execute"),
                        t -> true);
    }

    @Override
    protected String getTestName() {
        return testName;
    }

}